|Born: about 1060 in (possibly) Mathura, India
Died: about 1130 in India Brahmadeva was the son of Candrabudha. The
family came from the Mathura district of Uttar Pradesh in northern
India. He was born into the Brahman caste which meant he was from the
highest ranking caste of Hindu priests. The Brahman caste had a
strong tradition of education so Brahmadeva would have received one
of the best educations of men of his time.
We have only one
work by Brahmadeva and this is Karanaprakasa which is a commentary on
the Aryabhatiya by Aryabhata I. Brahmadeva's work is in nine chapters
and it follows the contents of the original Aryabhatiya. Topics
covered include the longitudes of the planets, problems relating to
the daily rotation of the heavens, eclipses of the sun and the moon,
risings and settings, the lunar crescent, and conjunctions of the
The work contains some contributions to
trigonometry, motivated by its application to mathematical astronomy.
It is this aspect of the work which is mentioned by Gupta in .
Different commentaries on the Aryabhatiya achieved popularity in
different parts of India. Brahmadeva's commentary seems to have been
particularly popular in Madras, Mysore and Maharastra. The more
important commentaries on the Aryabhatiya became the basis for
further commentaries and indeed this is what happened to the
Karanaprakasa. Commentaries on Brahmadeva's work continued to appear
up to the seventeenth century.
Article by: J J O'Connor and
E F Robertson